Glimmer v2.5.4 Release Notes
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Glimmer::DataBinding::ObservableModel
support for observing model attributes with specified:attribute_writer_type
option (default::attribute=
), which can be a single symbol or an array (e.g.attribute_writer_type: [:attribute=, :set_attribute]
). Glimmer automatches attribute name and automatically generates observer notification attribute writer methods.